National Grid plc short interest
Short interest in National Grid plc was 1.4 million shares at the 15 September 2026 settlement, up 19.8% on the previous settlement, with 1.39 days to cover at an average daily volume of 1.0 million shares, as reported to FINRA.
| Settlement | Shares short | Change | Average daily volume | Days to cover |
|---|---|---|---|---|
| 15 September 2026 | 1,429,665 | +19.8% | 1,029,925 | 1.39 |
| 31 August 2026 | 1,193,698 | -3.4% | 753,337 | 1.58 |
| 14 August 2026 | 1,236,153 | +64.2% | 678,380 | 1.82 |
| 31 July 2026 | 752,736 | -5.0% | 775,385 | 1.00 |
| 15 July 2026 | 792,811 | -47.7% | 864,534 | 1.00 |
| 30 June 2026 | 1,516,917 | +16.6% | 1,475,111 | 1.03 |
| 15 June 2026 | 1,301,198 | -43.7% | 966,873 | 1.35 |
| 29 May 2026 | 2,312,476 | +58.9% | 1,379,311 | 1.68 |
| 15 May 2026 | 1,455,548 | +44.0% | 2,141,570 | 1.00 |
| 30 April 2026 | 1,010,862 | +3.2% | 891,246 | 1.13 |
| 15 April 2026 | 979,513 | -1.5% | 805,602 | 1.22 |
| 31 March 2026 | 994,540 | -40.1% | 1,395,171 | 1.00 |
FINRA publishes consolidated short interest twice a month, about ten days after each settlement. Days to cover is shares short over average daily volume. Short interest as a share of the float is not shown: the float is not in the public record.
Source
FINRA equity short interest data, the public dataset.
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